The meridian 41° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.
The 41st meridian west forms a great circle with the 139th meridian east.
Starting at the North Pole and heading south to the South Pole, the 41st meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Lincoln Sea | ||
| De Long Fjord | ||
| Nansen Land | ||
| J.P. Koch Fjord | ||
| Freuchen Land | ||
| Odinland | ||
| Atlantic Ocean | ||
| Ceará Piauí — from Pernambuco — from Bahia — from Minas Gerais — from Espírito Santo — from Minas Gerais — for about 18 km from Espírito Santo — from Minas Gerais — from Espírito Santo — from Rio de Janeiro — from | ||
| Atlantic Ocean | Passing close to the coast of Brazil, east of São João da Barra | |
| Rio de Janeiro | ||
| Atlantic Ocean | ||
| Southern Ocean | ||
| Antarctica | Claimed by both (Argentine Antarctica) and (British Antarctic Territory) | |